Detachable children vehicle seat

ABSTRACT

A detachable children vehicle seat, comprises a base and a backrest pivotally connected together by a connection mechanism. The connection mechanism includes a transverse latching bar and a restriction tab in the back of the seat. A cross section of the latching bar has two edges of short and long, and the restriction tab consists of different height of vertical receiving slots and apertures. While assembling, short edge of the latching bar is inserted into said apertures and restricted by its long edge from going backward in order to prevent the bar from coming off the receiving slots. It is convenient for the user to operate either assembling or dismantling the seat with simple method.

FIELD OF THE INVENTION

This invention relates to a detachable children vehicle seat; in particular to a detachable assembly which makes use of a transverse latching bar and a restriction tab interlocked between its base and backrest.

BACKGROUND OF THE INVENTION

More and more people who carry their baby or children by vehicles since economy boosting, but the seat belt equipped for a car is only concerned about adults' safety and might be a fatal device for most of the baby or children. Therefore, in consideration of the safety of children, people must use children vehicle seat together with the seat belt and this is regulated by every country in the world.

The simplified children vehicle seat sold on the market is usually being separated into a base and a backrest for reducing the size for transportation, and then assembled if necessary for use. There is illustrated in FIG. 1 and FIG. 1A of a prior art detachable children vehicle seat which includes a backrest 1 and a base 2, wherein the backrest 1 has a lateral view of N shaped sealed positioning bar 11 extended from the bottom of the backrest; positioning blocks 21 are extended from back side of the base 2 and arranged symmetrically with an upward and downward crossed position. The method and procedure of detachment is 1. to turn over the backrest 1 downwards and lay down (as illustrated in FIGS. 1B and 1C), 2. to parallel move the backrest to disengage the positioning bar 11 from the most outside positioning block 21 (as illustrated in FIG. 1D), 3.to tilt and turn over the backrest 1 for disengaging the positioning bar 11 from other positioning blocks 21 (as illustrated in FIG. 1E), the reversed procedure for assembly the children vehicle seat.

It is clearly to see from the above description and illustration that the assembled procedure of prior art of simplified safety seat is complicated as playing a logic game and may not easy for practical use since the user has to turn the backrest or the base over and over again which causes inconvenience while assembling or dismantling the safety seat.

SUMMARY OF THE INVENTION

Hence, in order to overcome the problem associated with assembly structure between the base and the backrest of prior art children safety seat, and the defect that the user has to keep turning over the seat as playing a logic games for disengaging or assembling the backrest and the seat; the inventor finds a solution as a preferred embodiment of this invention. The main idea of this invention is to set a transverse latching bar in the bottom of the backrest, wherein the bar has a long and a short edge under a cross-sectional view; the backrest and the base are parallel when the latching bar inserted into the back side of the base by its short edge and received by receiving slots and apertures are formed on the restriction tab; an angle of children accommodation between the base and the backrest is formed by rotating the backrest; and since the receiving slots with its higher vertical height to said apertures, the long edge of the latching bar is limited from coming off the receiving slots so as connecting the base and the backrest. The advantage of this invention is achieved by simple operation of assembly and disassembly via easy procedure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several embodiments of the invention and, together with the description, serve to explain the principles of the invention.

Brief Description of the Drawings

FIG. 1 is a rear elevation view of a prior art children vehicle seat;

FIG. 1A is an enlarged side section view of the seat of FIG. 1;

FIG. 1B is a first schematic view of the seat detachment of FIG. 1;

FIG. 1C is a second schematic view of the seat detachment of FIG. 1;

FIG. 1D is a third schematic view of the seat detachment of FIG. 1

FIG. 1E is a fourth schematic view of the seat detachment of FIG. 1

FIG. 2 is a perspective view of a detachable children vehicle seat to a preferred embodiment of disassemble in accordance with the present invention;

FIG. 3 is a cross sectional view of the detachable children vehicle seat of a preferred embodiment of disassemble in accordance with the present invention;

FIG. 4 is a schematic view of the detachable children vehicle seat of a preferred embodiment of assembly motion in accordance with the present invention;

FIG. 5 is a partial cross sectional view of the detachable children vehicle seat of a preferred embodiment of completion assembly in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please referred to the illustration as FIG. 2 and FIG. 3 indicated a connection mechanism of a children vehicle seat which provides user a easy way of assembly and convenience of storage and transportation in accordance with the present invention. The preferred embodiment of this invention includes a base 3 and a backrest 4.

The base 3 includes a seat portion 31, both sides of said seat portion 31 are connected to a pair of side armrests 32; a location 33 for passing though vehicle safety belt is formed between said seat portion 31 and the armrests 32, enabling the children vehicle seat to be fastened by a safety belt when placed on a seat of a car; an arc restriction tab 34 is extended from an integral interval of the rear side of said seat portion 31; wherein the apertures 35 is a circle shape, the transverse apertures 35 and receiving slots 36 are formed between the restriction tab 34 and the seat portion 31. The vertical height of the receiving slots 36 is smaller than the receiving slots 35, one or one above located portions 37 extended upward from the restriction tab 34, said located portion 37 is a formed integral projection or groove.

The backrest 4 is pivotally connected with the base 3, said backrest 4 with an integral connected portion 40 at its end, said portion 40 includes a transverse latching bar 41 and several positioning slots 42 with the same number to the restriction tabs 34 of the base 3; said tabs are received by the positioning slots 42, said slots has a block 421 which is interlocked with the located portion 37; cross section of said latching bar 41 has two edges of short (a) and long (b), said short edge (a) with a vertical height smaller than said receiving slots 36, and the long edge (b) is a little bit smaller than said apertures 35 but bigger than said receiving slots 36.

Please referred to the illustration of FIG. 4 and FIG. 5, since the short edge (a) of latching bar 41 of the backrest 4 is a little bit smaller than the apertures 36, the backrest 4 is lay down when connecting the base 3 and the backrest, further the short edge (a) of latching bar 41 is toward the receiving slots 36 and allowed the latching bar 41 to insert into the aperture 35 through the receiving slots 36; then the user rotated the backrest 4 upward, the restriction tab 34 of the base 3 is received by the positioning slots 42 of the backrest 4. Therefore, an angle for accommodating children is formed between the base 3 and the backrest 4 by the block 421 of the positioning slots 42 together with the located portion 37 of the restriction tab 34; meanwhile, the latching bar 41 is limited from coming off the receiving slots 36 since the vertical height of long edge (b) is bigger than the vertical height of the receiving slots 36 when the back 4 is rotated and turned the long edge (b) of the latching bar 41 toward the receiving slots 36, the preferred embodiment of connecting the base 3 and the backrest 4 is illustrated in FIG. 5. When separating the base 3 and the backrest 4, the backrest 4 is rotated and lay down, wherein the short edge (a) is toward the receiving slots 36, then the user removed the backrest 4 in order to disengage the latching bar 41 of the backrest 4 from the receiving slots 36. As shown above, a connection mechanism of easy assembly or disassembly the base 3 and the backrest 4 for the user to operate in a simple way.

The preferred embodiments have been set forth herein for the purpose of illustration. This description, however, should not be deemed to be a limitation on the scope of the invention. Various modifications, adaptations, and alternatives may occur to one skilled in the art without departing from the claimed inventive concept. The true scope and spirit of the invention are indicated by the following claims. 

1. A detachable children vehicle seat comprising: a base having a seat portion and a restriction tab, said tab extended from rear end of the seat portion with a transverse aperture and a receiving slot, wherein said vertical height of said receiving slot is smaller than the height of said aperture; and a backrest having a connected portion at its end, wherein said portion includes a positioning slot and a transverse latching bar has two edges of short and long; an angle is formed between the base and the backrest when the backrest is pulled up since the latching bar is inserted into the receiving slot by its short edge, therefore the restriction tab is received by the positioning slot and also the long edge of the latching bar is blocked from coming off the receiving slot, whereby achieving the way of fast assembly of the base and the backrest.
 2. The detachable children vehicle seat of claim 1, wherein the restriction tab has a located portion which is interlocked with the block of the positioning slot of the backrest, whereby an fixed angle is formed between the base and the backrest.
 3. The detachable children vehicle seat of claim 1, wherein said seat portion of both sides are connected to a pair of armrests.
 4. The detachable children vehicle seat of claim 3, wherein a location for passing through a vehicle safety belt is formed between said seat portion and the armrests.
 5. The detachable children vehicle seat of claim 1, wherein said restriction tab is in a curve shape.
 6. The detachable children vehicle seat of claim 2, wherein said located portion is a projection extended from said restriction tab.
 7. The detachable children vehicle seat of claim 1, wherein said located portion is a groove. 